There's dash cam footage from inside a guy's car as he gets rear-ended on a highway near Philadelphia. Then it gets crazy. He chases the hit-and-run driver as she weaves in and out of traffic. At one point his car FLIPS over and lands back on its wheels.
So, he takes off again and continues the chase. The video ends with him still in pursuit. A ton of innocent people were put at risk during the chase . . . so it's a good example of how NOT to handle a hit-and-run situation.
(WARNING!!! This is loaded with profanities. Search YouTube for "16180191." The chase starts at 0:32, the car flips at 1:10, and he continues the chase at 1:24.)